Re: [PATCH 4/6] mm: proc: Invalidate TLB after clearing soft-dirty page state

[Peter Zijlstra]

On Fri, Nov 20, 2020 at 04:00:23PM +0100, Peter Zijlstra wrote:

> If you look at __tlb_remove_tlb_entry()

... you'll also find we can probably do this ... :-)

diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
index e841cae544c2..779a5a0f0608 100644
--- a/arch/sparc/include/asm/tlb_64.h
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -24,7 +24,6 @@ void flush_tlb_pending(void);
 
 #define tlb_start_vma(tlb, vma) do { } while (0)
 #define tlb_end_vma(tlb, vma)	do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
 #define tlb_flush(tlb)	flush_tlb_pending()
 
 /*
diff --git a/arch/x86/include/asm/tlb.h b/arch/x86/include/asm/tlb.h
index 820082bd6880..1bfe979bb9bc 100644
--- a/arch/x86/include/asm/tlb.h
+++ b/arch/x86/include/asm/tlb.h
@@ -4,7 +4,6 @@
 
 #define tlb_start_vma(tlb, vma) do { } while (0)
 #define tlb_end_vma(tlb, vma) do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
 
 #define tlb_flush tlb_flush
 static inline void tlb_flush(struct mmu_gather *tlb);